A crane is used to lift 500 Kg mass of two blocks up to 10m. It takes 2 minutes for first block and 5 minutes for second block .In which case is amount of work done will be more and in which case power is more. ( g= 10 m /s2 )
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workdone=mgh
=500*10*10= 50000j of both block
power=energy/time
for first block ,
P=(50000/120 )j/sec=5000/12watt
for second block
P=50000/300 j/sec=5000/30watt
here we shee block first block have more power then second block
=500*10*10= 50000j of both block
power=energy/time
for first block ,
P=(50000/120 )j/sec=5000/12watt
for second block
P=50000/300 j/sec=5000/30watt
here we shee block first block have more power then second block
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